Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tieu can hoi snippets" » "tiep can hoi snippets", "dieu can hoi snippets", "tiem can hoi snippets", "tieu cau hoi snippets", "tieu can ho snippets", "tieu dan hoi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tieu can hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tieu can hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tieu can hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tieu can hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.